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update for flex-2.3.8 from prep

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This commit is contained in:
cgd 1993-05-04 07:44:39 +00:00
parent 2820a4755d
commit 50a88402c8
38 changed files with 3224 additions and 3388 deletions
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70
gnu/usr.bin/lex/COPYING
View File

@ -2,50 +2,36 @@ Flex carries the copyright used for BSD software, slightly modified
because it originated at the Lawrence Berkeley (not Livermore!) Laboratory,
which operates under a contract with the Department of Energy:
/*-
* Copyright (c) 1991 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)COPYING 5.2 (Berkeley) 4/12/91
*/
Copyright (c) 1990 The Regents of the University of California.
All rights reserved.
This code is derived from software contributed to Berkeley by
Vern Paxson.
The United States Government has rights in this work pursuant
to contract no. DE-AC03-76SF00098 between the United States
Department of Energy and the University of California.
Redistribution and use in source and binary forms are permitted
provided that: (1) source distributions retain this entire
copyright notice and comment, and (2) distributions including
binaries display the following acknowledgement: ``This product
includes software developed by the University of California,
Berkeley and its contributors'' in the documentation or other
materials provided with the distribution and in all advertising
materials mentioning features or use of this software. Neither the
name of the University nor the names of its contributors may be
used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE.
This basically says "do whatever you please with this software except
remove this notice".
remove this notice or take advantage of the University's (or the flex
authors') name".
Note that the "flex.skel" scanner skeleton carries no copyright notice.
You are free to do whatever you please with scanners generated using flex;

51
gnu/usr.bin/lex/ccl.c
View File

@ -1,48 +1,35 @@
/* ccl - routines for character classes */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)ccl.c 5.2 (Berkeley) 6/18/90";
#endif /* not lint */
/* ccl - routines for character classes */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/gnu/usr.bin/lex/Attic/ccl.c,v 1.2 1993/05/04 07:44:41 cgd Exp $ (LBL)";
#endif
#include "flexdef.h"

56
gnu/usr.bin/lex/dfa.c
View File

@ -1,51 +1,39 @@
/* dfa - DFA construction routines */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)dfa.c 5.2 (Berkeley) 6/18/90";
#endif /* not lint */
/* dfa - DFA construction routines */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/gnu/usr.bin/lex/Attic/dfa.c,v 1.2 1993/05/04 07:44:42 cgd Exp $ (LBL)";
#endif
#include "flexdef.h"
/* declare functions that have forward references */
void dump_associated_rules PROTO((FILE*, int));
@ -1024,9 +1012,9 @@ int symlist[];
if ( tch != SYM_EPSILON )
{
if ( tch < -lastccl || tch > csize )
if ( tch < -lastccl || tch >= csize )
{
if ( tch > csize && tch <= CSIZE )
if ( tch >= csize && tch <= CSIZE )
flexerror( "scanner requires -8 flag" );
else

51
gnu/usr.bin/lex/ecs.c
View File

@ -1,48 +1,35 @@
/* ecs - equivalence class routines */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)ecs.c 5.2 (Berkeley) 6/18/90";
#endif /* not lint */
/* ecs - equivalence class routines */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/gnu/usr.bin/lex/Attic/ecs.c,v 1.2 1993/05/04 07:44:45 cgd Exp $ (LBL)";
#endif
#include "flexdef.h"

88
gnu/usr.bin/lex/flexdef.h
View File

@ -1,46 +1,32 @@
/* flexdef - definitions file for flex */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)flexdef.h 5.4 (Berkeley) 2/14/91
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
/* flexdef - definitions file for flex */
/* @(#) $Header: /cvsroot/src/gnu/usr.bin/lex/Attic/flexdef.h,v 1.2 1993/05/04 07:44:46 cgd Exp $ (LBL) */
#ifndef FILE
#include <stdio.h>
@ -70,7 +56,25 @@
#endif
#endif
#ifdef USG
#define SYS_V
#endif
#if defined(SYS_V) || defined(__386BSD__) || defined(__NetBSD__)
#include <string.h>
#else
#include <strings.h>
#ifdef lint
char *sprintf(); /* keep lint happy */
#endif
#ifdef SCO_UNIX
void *memset();
#else
char *memset();
#endif
#endif
#ifdef AMIGA
#define bzero(s, n) setmem((char *)(s), n, '\0')
@ -86,6 +90,21 @@
#define SHORT_FILE_NAMES
#endif
#ifdef __STDC__
#ifdef __GNUC__
#include <stddef.h>
void *malloc( size_t );
void free( void* );
#else
#include <stdlib.h>
#endif
#else /* ! __STDC__ */
char *malloc(), *realloc();
#endif
/* maximum line length we'll have to deal with */
#define MAXLINE BUFSIZ
@ -109,6 +128,11 @@
#define true 1
#define false 0
#include "pathnames.h"
#ifndef DEFAULT_SKELETON_FILE
#define DEFAULT_SKELETON_FILE _PATH_SKELETONFILE
#endif
/* special chk[] values marking the slots taking by end-of-buffer and action
* numbers

214
gnu/usr.bin/lex/flexdoc.1
View File

@ -1,45 +1,4 @@
.\" Copyright (c) 1991 The Regents of the University of California.
.\" All rights reserved.
.\"
.\" new copyright; att/bsd/shared
.\" This code is derived from software contributed to Berkeley by
.\" Vern Paxson of Lawrence Berkeley Laboratory.
.\"
.\" The United States Government has rights in this work pursuant
.\" to contract no. DE-AC03-76SF00098 between the United States
.\" Department of Energy and the University of California.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\" must display the following acknowledgement:
.\" This product includes software developed by the University of
.\" California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" @(#)flexdoc.1 5.2 (Berkeley) 4/12/91
.\"
.TH FLEX 1 "April 12, 1991"
.TH FLEX 1 "26 May 1990" "Version 2.3"
.SH NAME
flex - fast lexical analyzer generator
.SH SYNOPSIS
@ -146,7 +105,7 @@ A somewhat more complicated example:
}
{DIGIT}+"."{DIGIT}* {
printf( "A float: %s (%d)\\n", yytext,
printf( "A float: %s (%g)\\n", yytext,
atof( yytext ) );
}
@ -827,7 +786,10 @@ section of the input file):
%{
#undef YY_INPUT
#define YY_INPUT(buf,result,max_size) \\
result = ((buf[0] = getchar()) == EOF) ? YY_NULL : 1;
{ \\
int c = getchar(); \\
result = (c == EOF) ? YY_NULL : (buf[0] = c, 1); \\
}
%}
.fi
@ -2082,6 +2044,99 @@ is fully compatible with
.I lex
with the following exceptions:
.IP -
The undocumented
.I lex
scanner internal variable
.B yylineno
is not supported. It is difficult to support this option efficiently,
since it requires examining every character scanned and reexamining
the characters when the scanner backs up.
Things get more complicated when the end of buffer or file is reached or a
NUL is scanned (since the scan must then be restarted with the proper line
number count), or the user uses the yyless(), unput(), or REJECT actions,
or the multiple input buffer functions.
.IP
The fix is to add rules which, upon seeing a newline, increment
yylineno. This is usually an easy process, though it can be a drag if some
of the patterns can match multiple newlines along with other characters.
.IP
yylineno is not part of the POSIX draft.
.IP -
The
.B input()
routine is not redefinable, though it may be called to read characters
following whatever has been matched by a rule. If
.B input()
encounters an end-of-file the normal
.B yywrap()
processing is done. A ``real'' end-of-file is returned by
.B input()
as
.I EOF.
.IP
Input is instead controlled by redefining the
.B YY_INPUT
macro.
.IP
The
.I flex
restriction that
.B input()
cannot be redefined is in accordance with the POSIX draft, but
.B YY_INPUT
has not yet been accepted into the draft (and probably won't; it looks
like the draft will simply not specify any way of controlling the
scanner's input other than by making an initial assignment to
.I yyin).
.IP -
.I flex
scanners do not use stdio for input. Because of this, when writing an
interactive scanner one must explicitly call fflush() on the
stream associated with the terminal after writing out a prompt.
With
.I lex
such writes are automatically flushed since
.I lex
scanners use
.B getchar()
for their input. Also, when writing interactive scanners with
.I flex,
the
.B -I
flag must be used.
.IP -
.I flex
scanners are not as reentrant as
.I lex
scanners. In particular, if you have an interactive scanner and
an interrupt handler which long-jumps out of the scanner, and
the scanner is subsequently called again, you may get the following
message:
.nf
fatal flex scanner internal error--end of buffer missed
.fi
To reenter the scanner, first use
.nf
yyrestart( yyin );
.fi
.IP -
.B output()
is not supported.
Output from the
.B ECHO
macro is done to the file-pointer
.I yyout
(default
.I stdout).
.IP
The POSIX draft mentions that an
.B output()
routine exists but currently gives no details as to what it does.
.IP -
.I lex
does not support exclusive start conditions (%x), though they
are in the current POSIX draft.
@ -2125,49 +2180,6 @@ one must use "[^\\]]". The latter works with
.I lex,
too.
.IP -
The undocumented
.I lex
scanner internal variable
.B yylineno
is not supported. (The variable is not part of the POSIX draft.)
.IP -
The
.B input()
routine is not redefinable, though it may be called to read characters
following whatever has been matched by a rule. If
.B input()
encounters an end-of-file the normal
.B yywrap()
processing is done. A ``real'' end-of-file is returned by
.B input()
as
.I EOF.
.IP
Input is instead controlled by redefining the
.B YY_INPUT
macro.
.IP
The
.I flex
restriction that
.B input()
cannot be redefined is in accordance with the POSIX draft, but
.B YY_INPUT
has not yet been accepted into the draft.
.IP -
.B output()
is not supported.
Output from the
.B ECHO
macro is done to the file-pointer
.I yyout
(default
.I stdout).
.IP
The POSIX draft mentions that an
.B output()
routine exists but currently gives no details as to what it does.
.IP -
The
.I lex
.B %r
@ -2179,7 +2191,7 @@ If you are providing your own yywrap() routine, you must include a
the "#undef" will have to be enclosed in %{}'s.
.IP
The POSIX draft
specifies that yywrap() is a function and this is unlikely to change; so
specifies that yywrap() is a function and this is very unlikely to change; so
.I flex users are warned
that
.B yywrap()
@ -2354,6 +2366,17 @@ Your scanner specification includes recognizing 8-bit characters and
you did not specify the -8 flag (and your site has not installed flex
with -8 as the default).
.LP
.I
fatal flex scanner internal error--end of buffer missed -
This can occur in an scanner which is reentered after a long-jump
has jumped out (or over) the scanner's activation frame. Before
reentering the scanner, use:
.nf
yyrestart( yyin );
.fi
.LP
.I too many %t classes! -
You managed to put every single character into its own %t class.
.I flex
@ -2375,7 +2398,7 @@ Jacobson. The implementation was done by Kevin Gong and Vern Paxson.
Thanks to the many
.I flex
beta-testers, feedbackers, and contributors, especially Casey
Leedom, benson@odi.com,
Leedom, benson@odi.com, Keith Bostic,
Frederic Brehm, Nick Christopher, Jason Coughlin,
Scott David Daniels, Leo Eskin,
Chris Faylor, Eric Goldman, Eric
@ -2412,12 +2435,13 @@ Send comments to:
.nf
Vern Paxson
Computer Science Department
4126 Upson Hall
Cornell University
Ithaca, NY 14853-7501
Computer Systems Engineering
Bldg. 46A, Room 1123
Lawrence Berkeley Laboratory
University of California
Berkeley, CA 94720
vern@cs.cornell.edu
decvax!cornell!vern
vern@ee.lbl.gov
ucbvax!ee.lbl.gov!vern
.fi

66
gnu/usr.bin/lex/gen.c
View File

@ -1,51 +1,39 @@
/* gen - actual generation (writing) of flex scanners */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)gen.c 5.2 (Berkeley) 6/18/90";
#endif /* not lint */
/* gen - actual generation (writing) of flex scanners */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/gnu/usr.bin/lex/Attic/gen.c,v 1.2 1993/05/04 07:44:53 cgd Exp $ (LBL)";
#endif
#include "flexdef.h"
/* declare functions that have forward references */
void gen_next_state PROTO((int));
@ -688,11 +676,7 @@ void gen_NUL_trans()
do_indent();
if ( interactive )
printf( "yy_is_jam = (yy_base[yy_current_state] == %d);\n",
jambase );
else
printf( "yy_is_jam = (yy_current_state == %d);\n", jamstate );
printf( "yy_is_jam = (yy_current_state == %d);\n", jamstate );
}
/* if we've entered an accepting state, backtrack; note that
@ -811,7 +795,7 @@ void gentabs()
if ( variable_trailing_context_rules &&
! (accnum & YY_TRAILING_HEAD_MASK) &&
accnum > 0 &&
accnum > 0 && accnum <= num_rules &&
rule_type[accnum] == RULE_VARIABLE )
{
/* special hack to flag accepting number as part
@ -1137,9 +1121,10 @@ void make_tables()
puts( "static int yy_looking_for_trail_begin = 0;" );
puts( "static int yy_full_lp;" );
puts( "static int *yy_full_state;" );
printf( "#define YY_TRAILING_MASK 0x%x\n", YY_TRAILING_MASK );
printf( "#define YY_TRAILING_MASK 0x%x\n",
(unsigned int) YY_TRAILING_MASK );
printf( "#define YY_TRAILING_HEAD_MASK 0x%x\n",
YY_TRAILING_HEAD_MASK );
(unsigned int) YY_TRAILING_HEAD_MASK );
}
puts( "#define REJECT \\" );
@ -1210,6 +1195,7 @@ void make_tables()
if ( yymore_used )
{
indent_puts( "yy_more_len = 0;" );
indent_puts( "yy_doing_yy_more = yy_more_flag;" );
indent_puts( "if ( yy_doing_yy_more )" );
indent_up();

1067
gnu/usr.bin/lex/initscan.c
View File

File diff suppressed because it is too large Load Diff

1035
gnu/usr.bin/lex/lex.1
View File

File diff suppressed because it is too large Load Diff

52
gnu/usr.bin/lex/lex.skel
View File

@ -1,21 +1,12 @@
/* A lexical scanner generated by flex */
/* scanner skeleton version:
*
* $Header: /cvsroot/src/gnu/usr.bin/lex/Attic/lex.skel,v 1.1.1.1 1993/03/21 09:45:37 cgd Exp $
*
* @(#)lex.skel 5.5 (Berkeley) 5/6/91
* $Header: /cvsroot/src/gnu/usr.bin/lex/Attic/lex.skel,v 1.2 1993/05/04 07:45:02 cgd Exp $
*/
#define FLEX_SCANNER
#include <stdio.h>
#include <stdlib.h>
#ifdef __STDC__
#define YY_USE_PROTOS
#endif
/* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */
@ -28,11 +19,41 @@
#ifdef __cplusplus
#include <stdlib.h>
#include <osfcn.h>
/* use prototypes in function declarations */
#define YY_USE_PROTOS
/* the "const" storage-class-modifier is valid */
#define YY_USE_CONST
#else /* ! __cplusplus */
#ifdef __STDC__
#ifdef __GNUC__
#include <stddef.h>
void *malloc( size_t );
void free( void* );
#else
#include <stdlib.h>
#endif /* __GNUC__ */
#define YY_USE_PROTOS
#define YY_USE_CONST
#endif /* __STDC__ */
#endif /* ! __cplusplus */
#ifdef __TURBOC__
#define YY_USE_CONST
#endif
#ifndef YY_USE_CONST
#define const
#endif
@ -40,6 +61,13 @@
#define YY_PROTO(proto) proto
#else
#define YY_PROTO(proto) ()
/* we can't get here if it's an ANSI C compiler, or a C++ compiler,
* so it's got to be a K&R compiler, and therefore there's no standard
* place from which to include these definitions
*/
char *malloc();
int free();
int read();
#endif
@ -172,7 +200,7 @@ struct yy_buffer_state
YY_CHAR *yy_ch_buf; /* input buffer */
YY_CHAR *yy_buf_pos; /* current position in input buffer */
/* size of input buffer in bytes, not including room for EOB characters*/
/* size of input buffer in bytes, not including room for EOB characters */
int yy_buf_size;
/* number of characters read into yy_ch_buf, not including EOB characters */
@ -482,7 +510,7 @@ static int yy_get_next_buffer()
if ( yy_n_chars == 0 )
{
if ( number_to_move == 1 )
if ( number_to_move - YY_MORE_ADJ == 1 )
{
ret_val = EOB_ACT_END_OF_FILE;
yy_current_buffer->yy_eof_status = EOF_DONE;

2
gnu/usr.bin/lex/lib/libmain.c
View File

@ -1,6 +1,6 @@
/* libmain - flex run-time support library "main" function */
/* $Header: /cvsroot/src/gnu/usr.bin/lex/lib/Attic/libmain.c,v 1.1.1.1 1993/03/21 09:45:37 cgd Exp $ */
/* $Header: /cvsroot/src/gnu/usr.bin/lex/lib/Attic/libmain.c,v 1.2 1993/05/04 07:45:30 cgd Exp $ */
extern int yylex();

60
gnu/usr.bin/lex/main.c
View File

@ -1,41 +1,29 @@
/* flex - tool to generate fast lexical analyzers */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
@ -45,13 +33,12 @@ char copyright[] =
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)main.c 5.3 (Berkeley) 6/18/90";
#endif /* not lint */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/gnu/usr.bin/lex/Attic/main.c,v 1.2 1993/05/04 07:45:05 cgd Exp $ (LBL)";
#endif
/* flex - tool to generate fast lexical analyzers */
#include "flexdef.h"
#include "pathnames.h"
static char flex_version[] = "2.3";
@ -301,7 +288,7 @@ int status;
if ( usemecs )
putc( 'm', stderr );
if ( strcmp( skelname, _PATH_SKELETONFILE ) )
if ( skelname && strcmp( skelname, DEFAULT_SKELETON_FILE ) )
fprintf( stderr, " -S%s", skelname );
putc( '\n', stderr );
@ -420,6 +407,8 @@ char **argv;
csize = DEFAULT_CSIZE;
starttime = flex_gettime();
program_name = argv[0];
/* read flags */
@ -567,7 +556,7 @@ get_next_arg: /* used by -C and -S flags in lieu of a "continue 2" control */
static char skeleton_name_storage[400];
skelname = skeleton_name_storage;
(void) strcpy( skelname, _PATH_SKELETONFILE );
(void) strcpy( skelname, DEFAULT_SKELETON_FILE );
}
if ( ! use_stdout )
@ -604,7 +593,6 @@ get_next_arg: /* used by -C and -S flags in lieu of a "continue 2" control */
lastsc = 0;
/* initialize the statistics */
starttime = flex_gettime();
if ( (skelfile = fopen( skelname, "r" )) == NULL )
lerrsf( "can't open skeleton file %s", skelname );

132
gnu/usr.bin/lex/misc.c
View File

@ -1,53 +1,40 @@
/* misc - miscellaneous flex routines */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)misc.c 5.3 (Berkeley) 2/26/91";
#endif /* not lint */
/* misc - miscellaneous flex routines */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/gnu/usr.bin/lex/Attic/misc.c,v 1.2 1993/05/04 07:45:06 cgd Exp $ (LBL)";
#endif
#include <ctype.h>
#include <stdlib.h>
#include "flexdef.h"
/* ANSI C does not guarantee that isascii() is defined */
#ifndef isascii
#define isascii(c) ((c) <= 0177)
@ -386,7 +373,7 @@ char msg[];
{
fprintf( stderr, "%s: fatal internal error, %s\n", program_name, msg );
flexend( 1 );
exit( 1 );
}
@ -490,6 +477,38 @@ Char str[];
}
/* is_hex_digit - returns true if a character is a valid hex digit, false
* otherwise
*
* synopsis:
* int true_or_false, is_hex_digit();
* int ch;
* val = is_hex_digit( ch );
*/
int is_hex_digit( ch )
int ch;
{
if ( isdigit( ch ) )
return ( 1 );
switch ( clower( ch ) )
{
case 'a':
case 'b':
case 'c':
case 'd':
case 'e':
case 'f':
return ( 1 );
default:
return ( 0 );
}
}
/* line_directive_out - spit out a "# line" statement */
void line_directive_out( output_file_name )
@ -597,9 +616,14 @@ Char myesc( array )
Char array[];
{
Char c, esc_char;
register int sptr;
switch ( array[1] )
{
#ifdef __STDC__
case 'a': return ( '\a' );
#endif
case 'b': return ( '\b' );
case 'f': return ( '\f' );
case 'n': return ( '\n' );
@ -607,9 +631,6 @@ Char array[];
case 't': return ( '\t' );
case 'v': return ( '\v' );
case 'x':
/* fall through */
case '0':
case '1':
case '2':
@ -620,17 +641,12 @@ Char array[];
case '7':
case '8':
case '9':
{ /* \<octal> or \x<hex> */
Char c, esc_char;
register int sptr = 1;
if ( array[1] == 'x' )
++sptr;
{ /* \<octal> */
sptr = 1;
while ( isascii( array[sptr] ) && isdigit( array[sptr] ) )
/* don't increment inside loop control because if
* isdigit() is a macro it will expand it to two
* isdigit() is a macro it might expand into multiple
* increments ...
*/
++sptr;
@ -638,10 +654,28 @@ Char array[];
c = array[sptr];
array[sptr] = '\0';
if ( array[1] == 'x' )
esc_char = htoi( array + 2 );
else
esc_char = otoi( array + 1 );
esc_char = otoi( array + 1 );
array[sptr] = c;
return ( esc_char );
}
case 'x':
{ /* \x<hex> */
int sptr = 2;
while ( isascii( array[sptr] ) && is_hex_digit( array[sptr] ) )
/* don't increment inside loop control because if
* isdigit() is a macro it might expand into multiple
* increments ...
*/
++sptr;
c = array[sptr];
array[sptr] = '\0';
esc_char = htoi( array + 2 );
array[sptr] = c;

52
gnu/usr.bin/lex/nfa.c
View File

@ -1,51 +1,39 @@
/* nfa - NFA construction routines */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)nfa.c 5.2 (Berkeley) 6/18/90";
#endif /* not lint */
/* nfa - NFA construction routines */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/gnu/usr.bin/lex/Attic/nfa.c,v 1.2 1993/05/04 07:45:08 cgd Exp $ (LBL)";
#endif
#include "flexdef.h"
/* declare functions that have forward references */
int dupmachine PROTO((int));

85
gnu/usr.bin/lex/parse.y
View File

@ -1,58 +1,47 @@
/* parse.y - parser for flex input */
%token CHAR NUMBER SECTEND SCDECL XSCDECL WHITESPACE NAME PREVCCL EOF_OP
%{
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)parse.y 5.2 (Berkeley) 6/18/90";
#endif /* not lint */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/gnu/usr.bin/lex/Attic/parse.y,v 1.2 1993/05/04 07:45:09 cgd Exp $ (LBL)";
#endif
#include "flexdef.h"
int pat, scnum, eps, headcnt, trailcnt, anyccl, lastchar, i, actvp, rulelen;
int trlcontxt, xcluflg, cclsorted, varlength, variable_trail_rule;
Char clower();
void build_eof_action();
void yyerror();
static int madeany = false; /* whether we've made the '.' character class */
int previous_continued_action; /* whether the previous rule's action was '|' */
@ -346,14 +335,26 @@ rule : re2 re
headcnt = 0;
}
if ( varlength && headcnt == 0 )
{
/* again, see the comment in the rule for "re2 re"
* above
*/
add_accept( $1, num_rules | YY_TRAILING_HEAD_MASK );
variable_trail_rule = true;
}
else
{
if ( ! varlength )
headcnt = rulelen;
++rulelen;
trailcnt = 1;
}
trlcontxt = true;
if ( ! varlength )
headcnt = rulelen;
++rulelen;
trailcnt = 1;
eps = mkstate( SYM_EPSILON );
$$ = link_machines( $1,
link_machines( eps, mkstate( '\n' ) ) );
@ -456,7 +457,15 @@ singleton : singleton '*'
else
{
if ( $3 == 0 )
$$ = mkopt( mkrep( $1, $3, $5 ) );
{
if ( $5 <= 0 )
{
synerr( "bad iteration values" );
$$ = $1;
}
else
$$ = mkopt( mkrep( $1, 1, $5 ) );
}
else
$$ = mkrep( $1, $3, $5 );
}

67
gnu/usr.bin/lex/scan.l
View File

@ -1,62 +1,43 @@
/* scan.l - scanner for flex input */
%{
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)scan.l 5.3 (Berkeley) 4/12/91
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
/* scan.l - scanner for flex input */
#ifndef lint
static char rcsid[] =
"@(#) $Header: /cvsroot/src/gnu/usr.bin/lex/Attic/scan.l,v 1.2 1993/05/04 07:45:11 cgd Exp $ (LBL)";
#endif
%{
#undef yywrap
#include "flexdef.h"
#include "parse.h"
#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1989 The Regents of the University of California.\n";
static char CR_continuation[] = "@(#) All rights reserved.\n";
static char rcsid[] =
"@(#) $Header: /cvsroot/src/gnu/usr.bin/lex/Attic/scan.l,v 1.1.1.1 1993/03/21 09:45:37 cgd Exp $ (LBL)";
#endif
#define ACTION_ECHO fprintf( temp_action_file, "%s", yytext )
#define MARK_END_OF_PROLOG fprintf( temp_action_file, "%%%% end of prolog\n" );
@ -138,7 +119,7 @@ ESCSEQ \\([^\n]|[0-9]{1,3}|x[0-9a-f]{1,2})
}
^"%"[aeknopt]" ".*\n {
^"%"[aeknopt]{WS}.*\n {
#ifdef NOTDEF
fprintf( stderr,
"old-style lex command at line %d ignored:\n\t%s",

50
gnu/usr.bin/lex/sym.c
View File

@ -5,47 +5,35 @@
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)sym.c 5.2 (Berkeley) 6/18/90";
#endif /* not lint */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/gnu/usr.bin/lex/Attic/sym.c,v 1.2 1993/05/04 07:45:12 cgd Exp $ (LBL)";
#endif
#include "flexdef.h"
/* declare functions that have forward references */
int hashfunct PROTO((register char[], int));
@ -210,7 +198,7 @@ int hash_size;
locstr = 0;
while ( str[locstr] )
hashval = ((hashval << 1) + str[locstr++]) % hash_size;
hashval = ((hashval << 1) + (unsigned char) str[locstr++]) % hash_size;
return ( hashval );
}

61
gnu/usr.bin/lex/tblcmp.c
View File

@ -5,47 +5,35 @@
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)tblcmp.c 5.2 (Berkeley) 6/18/90";
#endif /* not lint */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/gnu/usr.bin/lex/Attic/tblcmp.c,v 1.2 1993/05/04 07:45:15 cgd Exp $ (LBL)";
#endif
#include "flexdef.h"
/* declarations for functions that have forward references */
void mkentry PROTO((register int*, int, int, int, int));
@ -380,7 +368,7 @@ int *state, numtrans;
while ( 1 ) /* loops until a space is found */
{
if ( i + numecs > current_max_xpairs )
if ( i + numecs >= current_max_xpairs )
expand_nxt_chk();
/* loops until space for end-of-buffer and action number are found */
@ -401,7 +389,7 @@ int *state, numtrans;
else
++i;
if ( i + numecs > current_max_xpairs )
if ( i + numecs >= current_max_xpairs )
expand_nxt_chk();
}
@ -488,7 +476,7 @@ void mkdeftbl()
++tblend; /* room for transition on end-of-buffer character */
if ( tblend + numecs > current_max_xpairs )
if ( tblend + numecs >= current_max_xpairs )
expand_nxt_chk();
/* add in default end-of-buffer transition */
@ -596,7 +584,7 @@ int numchars, statenum, deflink, totaltrans;
;
}
if ( baseaddr + maxec - minec >= current_max_xpairs )
if ( baseaddr + maxec - minec + 1 >= current_max_xpairs )
expand_nxt_chk();
for ( i = minec; i <= maxec; ++i )
@ -610,7 +598,8 @@ int numchars, statenum, deflink, totaltrans;
++baseaddr )
;
if ( baseaddr + maxec - minec >= current_max_xpairs )
if ( baseaddr + maxec - minec + 1 >=
current_max_xpairs )
expand_nxt_chk();
/* reset the loop counter so we'll start all
@ -632,7 +621,7 @@ int numchars, statenum, deflink, totaltrans;
tblbase = baseaddr - minec;
tbllast = tblbase + maxec;
if ( tbllast >= current_max_xpairs )
if ( tbllast + 1 >= current_max_xpairs )
expand_nxt_chk();
base[statenum] = tblbase;

47
gnu/usr.bin/lex/yylex.c
View File

@ -5,44 +5,31 @@
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)yylex.c 5.2 (Berkeley) 6/18/90";
#endif /* not lint */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/gnu/usr.bin/lex/Attic/yylex.c,v 1.2 1993/05/04 07:45:17 cgd Exp $ (LBL)";
#endif
#include <ctype.h>
#include "flexdef.h"

70
usr.bin/lex/COPYING
View File

@ -2,50 +2,36 @@ Flex carries the copyright used for BSD software, slightly modified
because it originated at the Lawrence Berkeley (not Livermore!) Laboratory,
which operates under a contract with the Department of Energy:
/*-
* Copyright (c) 1991 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)COPYING 5.2 (Berkeley) 4/12/91
*/
Copyright (c) 1990 The Regents of the University of California.
All rights reserved.
This code is derived from software contributed to Berkeley by
Vern Paxson.
The United States Government has rights in this work pursuant
to contract no. DE-AC03-76SF00098 between the United States
Department of Energy and the University of California.
Redistribution and use in source and binary forms are permitted
provided that: (1) source distributions retain this entire
copyright notice and comment, and (2) distributions including
binaries display the following acknowledgement: ``This product
includes software developed by the University of California,
Berkeley and its contributors'' in the documentation or other
materials provided with the distribution and in all advertising
materials mentioning features or use of this software. Neither the
name of the University nor the names of its contributors may be
used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE.
This basically says "do whatever you please with this software except
remove this notice".
remove this notice or take advantage of the University's (or the flex
authors') name".
Note that the "flex.skel" scanner skeleton carries no copyright notice.
You are free to do whatever you please with scanners generated using flex;

51
usr.bin/lex/ccl.c
View File

@ -1,48 +1,35 @@
/* ccl - routines for character classes */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)ccl.c 5.2 (Berkeley) 6/18/90";
#endif /* not lint */
/* ccl - routines for character classes */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/usr.bin/lex/Attic/ccl.c,v 1.2 1993/05/04 07:44:41 cgd Exp $ (LBL)";
#endif
#include "flexdef.h"

56
usr.bin/lex/dfa.c
View File

@ -1,51 +1,39 @@
/* dfa - DFA construction routines */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)dfa.c 5.2 (Berkeley) 6/18/90";
#endif /* not lint */
/* dfa - DFA construction routines */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/usr.bin/lex/Attic/dfa.c,v 1.2 1993/05/04 07:44:42 cgd Exp $ (LBL)";
#endif
#include "flexdef.h"
/* declare functions that have forward references */
void dump_associated_rules PROTO((FILE*, int));
@ -1024,9 +1012,9 @@ int symlist[];
if ( tch != SYM_EPSILON )
{
if ( tch < -lastccl || tch > csize )
if ( tch < -lastccl || tch >= csize )
{
if ( tch > csize && tch <= CSIZE )
if ( tch >= csize && tch <= CSIZE )
flexerror( "scanner requires -8 flag" );
else

51
usr.bin/lex/ecs.c
View File

@ -1,48 +1,35 @@
/* ecs - equivalence class routines */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)ecs.c 5.2 (Berkeley) 6/18/90";
#endif /* not lint */
/* ecs - equivalence class routines */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/usr.bin/lex/Attic/ecs.c,v 1.2 1993/05/04 07:44:45 cgd Exp $ (LBL)";
#endif
#include "flexdef.h"

88
usr.bin/lex/flexdef.h
View File

@ -1,46 +1,32 @@
/* flexdef - definitions file for flex */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)flexdef.h 5.4 (Berkeley) 2/14/91
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
/* flexdef - definitions file for flex */
/* @(#) $Header: /cvsroot/src/usr.bin/lex/Attic/flexdef.h,v 1.2 1993/05/04 07:44:46 cgd Exp $ (LBL) */
#ifndef FILE
#include <stdio.h>
@ -70,7 +56,25 @@
#endif
#endif
#ifdef USG
#define SYS_V
#endif
#if defined(SYS_V) || defined(__386BSD__) || defined(__NetBSD__)
#include <string.h>
#else
#include <strings.h>
#ifdef lint
char *sprintf(); /* keep lint happy */
#endif
#ifdef SCO_UNIX
void *memset();
#else
char *memset();
#endif
#endif
#ifdef AMIGA
#define bzero(s, n) setmem((char *)(s), n, '\0')
@ -86,6 +90,21 @@
#define SHORT_FILE_NAMES
#endif
#ifdef __STDC__
#ifdef __GNUC__
#include <stddef.h>
void *malloc( size_t );
void free( void* );
#else
#include <stdlib.h>
#endif
#else /* ! __STDC__ */
char *malloc(), *realloc();
#endif
/* maximum line length we'll have to deal with */
#define MAXLINE BUFSIZ
@ -109,6 +128,11 @@
#define true 1
#define false 0
#include "pathnames.h"
#ifndef DEFAULT_SKELETON_FILE
#define DEFAULT_SKELETON_FILE _PATH_SKELETONFILE
#endif
/* special chk[] values marking the slots taking by end-of-buffer and action
* numbers

214
usr.bin/lex/flexdoc.1
View File

@ -1,45 +1,4 @@
.\" Copyright (c) 1991 The Regents of the University of California.
.\" All rights reserved.
.\"
.\" new copyright; att/bsd/shared
.\" This code is derived from software contributed to Berkeley by
.\" Vern Paxson of Lawrence Berkeley Laboratory.
.\"
.\" The United States Government has rights in this work pursuant
.\" to contract no. DE-AC03-76SF00098 between the United States
.\" Department of Energy and the University of California.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\" must display the following acknowledgement:
.\" This product includes software developed by the University of
.\" California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" @(#)flexdoc.1 5.2 (Berkeley) 4/12/91
.\"
.TH FLEX 1 "April 12, 1991"
.TH FLEX 1 "26 May 1990" "Version 2.3"
.SH NAME
flex - fast lexical analyzer generator
.SH SYNOPSIS
@ -146,7 +105,7 @@ A somewhat more complicated example:
}
{DIGIT}+"."{DIGIT}* {
printf( "A float: %s (%d)\\n", yytext,
printf( "A float: %s (%g)\\n", yytext,
atof( yytext ) );
}
@ -827,7 +786,10 @@ section of the input file):
%{
#undef YY_INPUT
#define YY_INPUT(buf,result,max_size) \\
result = ((buf[0] = getchar()) == EOF) ? YY_NULL : 1;
{ \\
int c = getchar(); \\
result = (c == EOF) ? YY_NULL : (buf[0] = c, 1); \\
}
%}
.fi
@ -2082,6 +2044,99 @@ is fully compatible with
.I lex
with the following exceptions:
.IP -
The undocumented
.I lex
scanner internal variable
.B yylineno
is not supported. It is difficult to support this option efficiently,
since it requires examining every character scanned and reexamining
the characters when the scanner backs up.
Things get more complicated when the end of buffer or file is reached or a
NUL is scanned (since the scan must then be restarted with the proper line
number count), or the user uses the yyless(), unput(), or REJECT actions,
or the multiple input buffer functions.
.IP
The fix is to add rules which, upon seeing a newline, increment
yylineno. This is usually an easy process, though it can be a drag if some
of the patterns can match multiple newlines along with other characters.
.IP
yylineno is not part of the POSIX draft.
.IP -
The
.B input()
routine is not redefinable, though it may be called to read characters
following whatever has been matched by a rule. If
.B input()
encounters an end-of-file the normal
.B yywrap()
processing is done. A ``real'' end-of-file is returned by
.B input()
as
.I EOF.
.IP
Input is instead controlled by redefining the
.B YY_INPUT
macro.
.IP
The
.I flex
restriction that
.B input()
cannot be redefined is in accordance with the POSIX draft, but
.B YY_INPUT
has not yet been accepted into the draft (and probably won't; it looks
like the draft will simply not specify any way of controlling the
scanner's input other than by making an initial assignment to
.I yyin).
.IP -
.I flex
scanners do not use stdio for input. Because of this, when writing an
interactive scanner one must explicitly call fflush() on the
stream associated with the terminal after writing out a prompt.
With
.I lex
such writes are automatically flushed since
.I lex
scanners use
.B getchar()
for their input. Also, when writing interactive scanners with
.I flex,
the
.B -I
flag must be used.
.IP -
.I flex
scanners are not as reentrant as
.I lex
scanners. In particular, if you have an interactive scanner and
an interrupt handler which long-jumps out of the scanner, and
the scanner is subsequently called again, you may get the following
message:
.nf
fatal flex scanner internal error--end of buffer missed
.fi
To reenter the scanner, first use
.nf
yyrestart( yyin );
.fi
.IP -
.B output()
is not supported.
Output from the
.B ECHO
macro is done to the file-pointer
.I yyout
(default
.I stdout).
.IP
The POSIX draft mentions that an
.B output()
routine exists but currently gives no details as to what it does.
.IP -
.I lex
does not support exclusive start conditions (%x), though they
are in the current POSIX draft.
@ -2125,49 +2180,6 @@ one must use "[^\\]]". The latter works with
.I lex,
too.
.IP -
The undocumented
.I lex
scanner internal variable
.B yylineno
is not supported. (The variable is not part of the POSIX draft.)
.IP -
The
.B input()
routine is not redefinable, though it may be called to read characters
following whatever has been matched by a rule. If
.B input()
encounters an end-of-file the normal
.B yywrap()
processing is done. A ``real'' end-of-file is returned by
.B input()
as
.I EOF.
.IP
Input is instead controlled by redefining the
.B YY_INPUT
macro.
.IP
The
.I flex
restriction that
.B input()
cannot be redefined is in accordance with the POSIX draft, but
.B YY_INPUT
has not yet been accepted into the draft.
.IP -
.B output()
is not supported.
Output from the
.B ECHO
macro is done to the file-pointer
.I yyout
(default
.I stdout).
.IP
The POSIX draft mentions that an
.B output()
routine exists but currently gives no details as to what it does.
.IP -
The
.I lex
.B %r
@ -2179,7 +2191,7 @@ If you are providing your own yywrap() routine, you must include a
the "#undef" will have to be enclosed in %{}'s.
.IP
The POSIX draft
specifies that yywrap() is a function and this is unlikely to change; so
specifies that yywrap() is a function and this is very unlikely to change; so
.I flex users are warned
that
.B yywrap()
@ -2354,6 +2366,17 @@ Your scanner specification includes recognizing 8-bit characters and
you did not specify the -8 flag (and your site has not installed flex
with -8 as the default).
.LP
.I
fatal flex scanner internal error--end of buffer missed -
This can occur in an scanner which is reentered after a long-jump
has jumped out (or over) the scanner's activation frame. Before
reentering the scanner, use:
.nf
yyrestart( yyin );
.fi
.LP
.I too many %t classes! -
You managed to put every single character into its own %t class.
.I flex
@ -2375,7 +2398,7 @@ Jacobson. The implementation was done by Kevin Gong and Vern Paxson.
Thanks to the many
.I flex
beta-testers, feedbackers, and contributors, especially Casey
Leedom, benson@odi.com,
Leedom, benson@odi.com, Keith Bostic,
Frederic Brehm, Nick Christopher, Jason Coughlin,
Scott David Daniels, Leo Eskin,
Chris Faylor, Eric Goldman, Eric
@ -2412,12 +2435,13 @@ Send comments to:
.nf
Vern Paxson
Computer Science Department
4126 Upson Hall
Cornell University
Ithaca, NY 14853-7501
Computer Systems Engineering
Bldg. 46A, Room 1123
Lawrence Berkeley Laboratory
University of California
Berkeley, CA 94720
vern@cs.cornell.edu
decvax!cornell!vern
vern@ee.lbl.gov
ucbvax!ee.lbl.gov!vern
.fi

66
usr.bin/lex/gen.c
View File

@ -1,51 +1,39 @@
/* gen - actual generation (writing) of flex scanners */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)gen.c 5.2 (Berkeley) 6/18/90";
#endif /* not lint */
/* gen - actual generation (writing) of flex scanners */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/usr.bin/lex/Attic/gen.c,v 1.2 1993/05/04 07:44:53 cgd Exp $ (LBL)";
#endif
#include "flexdef.h"
/* declare functions that have forward references */
void gen_next_state PROTO((int));
@ -688,11 +676,7 @@ void gen_NUL_trans()
do_indent();
if ( interactive )
printf( "yy_is_jam = (yy_base[yy_current_state] == %d);\n",
jambase );
else
printf( "yy_is_jam = (yy_current_state == %d);\n", jamstate );
printf( "yy_is_jam = (yy_current_state == %d);\n", jamstate );
}
/* if we've entered an accepting state, backtrack; note that
@ -811,7 +795,7 @@ void gentabs()
if ( variable_trailing_context_rules &&
! (accnum & YY_TRAILING_HEAD_MASK) &&
accnum > 0 &&
accnum > 0 && accnum <= num_rules &&
rule_type[accnum] == RULE_VARIABLE )
{
/* special hack to flag accepting number as part
@ -1137,9 +1121,10 @@ void make_tables()
puts( "static int yy_looking_for_trail_begin = 0;" );
puts( "static int yy_full_lp;" );
puts( "static int *yy_full_state;" );
printf( "#define YY_TRAILING_MASK 0x%x\n", YY_TRAILING_MASK );
printf( "#define YY_TRAILING_MASK 0x%x\n",
(unsigned int) YY_TRAILING_MASK );
printf( "#define YY_TRAILING_HEAD_MASK 0x%x\n",
YY_TRAILING_HEAD_MASK );
(unsigned int) YY_TRAILING_HEAD_MASK );
}
puts( "#define REJECT \\" );
@ -1210,6 +1195,7 @@ void make_tables()
if ( yymore_used )
{
indent_puts( "yy_more_len = 0;" );
indent_puts( "yy_doing_yy_more = yy_more_flag;" );
indent_puts( "if ( yy_doing_yy_more )" );
indent_up();

1067
usr.bin/lex/initscan.c
View File

File diff suppressed because it is too large Load Diff

1035
usr.bin/lex/lex.1
View File

File diff suppressed because it is too large Load Diff

52
usr.bin/lex/lex.skel
View File

@ -1,21 +1,12 @@
/* A lexical scanner generated by flex */
/* scanner skeleton version:
*
* $Header: /cvsroot/src/usr.bin/lex/Attic/lex.skel,v 1.1.1.1 1993/03/21 09:45:37 cgd Exp $
*
* @(#)lex.skel 5.5 (Berkeley) 5/6/91
* $Header: /cvsroot/src/usr.bin/lex/Attic/lex.skel,v 1.2 1993/05/04 07:45:02 cgd Exp $
*/
#define FLEX_SCANNER
#include <stdio.h>
#include <stdlib.h>
#ifdef __STDC__
#define YY_USE_PROTOS
#endif
/* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */
@ -28,11 +19,41 @@
#ifdef __cplusplus
#include <stdlib.h>
#include <osfcn.h>
/* use prototypes in function declarations */
#define YY_USE_PROTOS
/* the "const" storage-class-modifier is valid */
#define YY_USE_CONST
#else /* ! __cplusplus */
#ifdef __STDC__
#ifdef __GNUC__
#include <stddef.h>
void *malloc( size_t );
void free( void* );
#else
#include <stdlib.h>
#endif /* __GNUC__ */
#define YY_USE_PROTOS
#define YY_USE_CONST
#endif /* __STDC__ */
#endif /* ! __cplusplus */
#ifdef __TURBOC__
#define YY_USE_CONST
#endif
#ifndef YY_USE_CONST
#define const
#endif
@ -40,6 +61,13 @@
#define YY_PROTO(proto) proto
#else
#define YY_PROTO(proto) ()
/* we can't get here if it's an ANSI C compiler, or a C++ compiler,
* so it's got to be a K&R compiler, and therefore there's no standard
* place from which to include these definitions
*/
char *malloc();
int free();
int read();
#endif
@ -172,7 +200,7 @@ struct yy_buffer_state
YY_CHAR *yy_ch_buf; /* input buffer */
YY_CHAR *yy_buf_pos; /* current position in input buffer */
/* size of input buffer in bytes, not including room for EOB characters*/
/* size of input buffer in bytes, not including room for EOB characters */
int yy_buf_size;
/* number of characters read into yy_ch_buf, not including EOB characters */
@ -482,7 +510,7 @@ static int yy_get_next_buffer()
if ( yy_n_chars == 0 )
{
if ( number_to_move == 1 )
if ( number_to_move - YY_MORE_ADJ == 1 )
{
ret_val = EOB_ACT_END_OF_FILE;
yy_current_buffer->yy_eof_status = EOF_DONE;

2
usr.bin/lex/lib/libmain.c
View File

@ -1,6 +1,6 @@
/* libmain - flex run-time support library "main" function */
/* $Header: /cvsroot/src/usr.bin/lex/lib/Attic/libmain.c,v 1.1.1.1 1993/03/21 09:45:37 cgd Exp $ */
/* $Header: /cvsroot/src/usr.bin/lex/lib/Attic/libmain.c,v 1.2 1993/05/04 07:45:30 cgd Exp $ */
extern int yylex();

60
usr.bin/lex/main.c
View File

@ -1,41 +1,29 @@
/* flex - tool to generate fast lexical analyzers */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
@ -45,13 +33,12 @@ char copyright[] =
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)main.c 5.3 (Berkeley) 6/18/90";
#endif /* not lint */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/usr.bin/lex/Attic/main.c,v 1.2 1993/05/04 07:45:05 cgd Exp $ (LBL)";
#endif
/* flex - tool to generate fast lexical analyzers */
#include "flexdef.h"
#include "pathnames.h"
static char flex_version[] = "2.3";
@ -301,7 +288,7 @@ int status;
if ( usemecs )
putc( 'm', stderr );
if ( strcmp( skelname, _PATH_SKELETONFILE ) )
if ( skelname && strcmp( skelname, DEFAULT_SKELETON_FILE ) )
fprintf( stderr, " -S%s", skelname );
putc( '\n', stderr );
@ -420,6 +407,8 @@ char **argv;
csize = DEFAULT_CSIZE;
starttime = flex_gettime();
program_name = argv[0];
/* read flags */
@ -567,7 +556,7 @@ get_next_arg: /* used by -C and -S flags in lieu of a "continue 2" control */
static char skeleton_name_storage[400];
skelname = skeleton_name_storage;
(void) strcpy( skelname, _PATH_SKELETONFILE );
(void) strcpy( skelname, DEFAULT_SKELETON_FILE );
}
if ( ! use_stdout )
@ -604,7 +593,6 @@ get_next_arg: /* used by -C and -S flags in lieu of a "continue 2" control */
lastsc = 0;
/* initialize the statistics */
starttime = flex_gettime();
if ( (skelfile = fopen( skelname, "r" )) == NULL )
lerrsf( "can't open skeleton file %s", skelname );

132
usr.bin/lex/misc.c
View File

@ -1,53 +1,40 @@
/* misc - miscellaneous flex routines */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)misc.c 5.3 (Berkeley) 2/26/91";
#endif /* not lint */
/* misc - miscellaneous flex routines */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/usr.bin/lex/Attic/misc.c,v 1.2 1993/05/04 07:45:06 cgd Exp $ (LBL)";
#endif
#include <ctype.h>
#include <stdlib.h>
#include "flexdef.h"
/* ANSI C does not guarantee that isascii() is defined */
#ifndef isascii
#define isascii(c) ((c) <= 0177)
@ -386,7 +373,7 @@ char msg[];
{
fprintf( stderr, "%s: fatal internal error, %s\n", program_name, msg );
flexend( 1 );
exit( 1 );
}
@ -490,6 +477,38 @@ Char str[];
}
/* is_hex_digit - returns true if a character is a valid hex digit, false
* otherwise
*
* synopsis:
* int true_or_false, is_hex_digit();
* int ch;
* val = is_hex_digit( ch );
*/
int is_hex_digit( ch )
int ch;
{
if ( isdigit( ch ) )
return ( 1 );
switch ( clower( ch ) )
{
case 'a':
case 'b':
case 'c':
case 'd':
case 'e':
case 'f':
return ( 1 );
default:
return ( 0 );
}
}
/* line_directive_out - spit out a "# line" statement */
void line_directive_out( output_file_name )
@ -597,9 +616,14 @@ Char myesc( array )
Char array[];
{
Char c, esc_char;
register int sptr;
switch ( array[1] )
{
#ifdef __STDC__
case 'a': return ( '\a' );
#endif
case 'b': return ( '\b' );
case 'f': return ( '\f' );
case 'n': return ( '\n' );
@ -607,9 +631,6 @@ Char array[];
case 't': return ( '\t' );
case 'v': return ( '\v' );
case 'x':
/* fall through */
case '0':
case '1':
case '2':
@ -620,17 +641,12 @@ Char array[];
case '7':
case '8':
case '9':
{ /* \<octal> or \x<hex> */
Char c, esc_char;
register int sptr = 1;
if ( array[1] == 'x' )
++sptr;
{ /* \<octal> */
sptr = 1;
while ( isascii( array[sptr] ) && isdigit( array[sptr] ) )
/* don't increment inside loop control because if
* isdigit() is a macro it will expand it to two
* isdigit() is a macro it might expand into multiple
* increments ...
*/
++sptr;
@ -638,10 +654,28 @@ Char array[];
c = array[sptr];
array[sptr] = '\0';
if ( array[1] == 'x' )
esc_char = htoi( array + 2 );
else
esc_char = otoi( array + 1 );
esc_char = otoi( array + 1 );
array[sptr] = c;
return ( esc_char );
}
case 'x':
{ /* \x<hex> */
int sptr = 2;
while ( isascii( array[sptr] ) && is_hex_digit( array[sptr] ) )
/* don't increment inside loop control because if
* isdigit() is a macro it might expand into multiple
* increments ...
*/
++sptr;
c = array[sptr];
array[sptr] = '\0';
esc_char = htoi( array + 2 );
array[sptr] = c;

52
usr.bin/lex/nfa.c
View File

@ -1,51 +1,39 @@
/* nfa - NFA construction routines */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)nfa.c 5.2 (Berkeley) 6/18/90";
#endif /* not lint */
/* nfa - NFA construction routines */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/usr.bin/lex/Attic/nfa.c,v 1.2 1993/05/04 07:45:08 cgd Exp $ (LBL)";
#endif
#include "flexdef.h"
/* declare functions that have forward references */
int dupmachine PROTO((int));

85
usr.bin/lex/parse.y
View File

@ -1,58 +1,47 @@
/* parse.y - parser for flex input */
%token CHAR NUMBER SECTEND SCDECL XSCDECL WHITESPACE NAME PREVCCL EOF_OP
%{
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)parse.y 5.2 (Berkeley) 6/18/90";
#endif /* not lint */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/usr.bin/lex/Attic/parse.y,v 1.2 1993/05/04 07:45:09 cgd Exp $ (LBL)";
#endif
#include "flexdef.h"
int pat, scnum, eps, headcnt, trailcnt, anyccl, lastchar, i, actvp, rulelen;
int trlcontxt, xcluflg, cclsorted, varlength, variable_trail_rule;
Char clower();
void build_eof_action();
void yyerror();
static int madeany = false; /* whether we've made the '.' character class */
int previous_continued_action; /* whether the previous rule's action was '|' */
@ -346,14 +335,26 @@ rule : re2 re
headcnt = 0;
}
if ( varlength && headcnt == 0 )
{
/* again, see the comment in the rule for "re2 re"
* above
*/
add_accept( $1, num_rules | YY_TRAILING_HEAD_MASK );
variable_trail_rule = true;
}
else
{
if ( ! varlength )
headcnt = rulelen;
++rulelen;
trailcnt = 1;
}
trlcontxt = true;
if ( ! varlength )
headcnt = rulelen;
++rulelen;
trailcnt = 1;
eps = mkstate( SYM_EPSILON );
$$ = link_machines( $1,
link_machines( eps, mkstate( '\n' ) ) );
@ -456,7 +457,15 @@ singleton : singleton '*'
else
{
if ( $3 == 0 )
$$ = mkopt( mkrep( $1, $3, $5 ) );
{
if ( $5 <= 0 )
{
synerr( "bad iteration values" );
$$ = $1;
}
else
$$ = mkopt( mkrep( $1, 1, $5 ) );
}
else
$$ = mkrep( $1, $3, $5 );
}

67
usr.bin/lex/scan.l
View File

@ -1,62 +1,43 @@
/* scan.l - scanner for flex input */
%{
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)scan.l 5.3 (Berkeley) 4/12/91
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
/* scan.l - scanner for flex input */
#ifndef lint
static char rcsid[] =
"@(#) $Header: /cvsroot/src/usr.bin/lex/Attic/scan.l,v 1.2 1993/05/04 07:45:11 cgd Exp $ (LBL)";
#endif
%{
#undef yywrap
#include "flexdef.h"
#include "parse.h"
#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1989 The Regents of the University of California.\n";
static char CR_continuation[] = "@(#) All rights reserved.\n";
static char rcsid[] =
"@(#) $Header: /cvsroot/src/usr.bin/lex/Attic/scan.l,v 1.1.1.1 1993/03/21 09:45:37 cgd Exp $ (LBL)";
#endif
#define ACTION_ECHO fprintf( temp_action_file, "%s", yytext )
#define MARK_END_OF_PROLOG fprintf( temp_action_file, "%%%% end of prolog\n" );
@ -138,7 +119,7 @@ ESCSEQ \\([^\n]|[0-9]{1,3}|x[0-9a-f]{1,2})
}
^"%"[aeknopt]" ".*\n {
^"%"[aeknopt]{WS}.*\n {
#ifdef NOTDEF
fprintf( stderr,
"old-style lex command at line %d ignored:\n\t%s",

50
usr.bin/lex/sym.c
View File

@ -5,47 +5,35 @@
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)sym.c 5.2 (Berkeley) 6/18/90";
#endif /* not lint */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/usr.bin/lex/Attic/sym.c,v 1.2 1993/05/04 07:45:12 cgd Exp $ (LBL)";
#endif
#include "flexdef.h"
/* declare functions that have forward references */
int hashfunct PROTO((register char[], int));
@ -210,7 +198,7 @@ int hash_size;
locstr = 0;
while ( str[locstr] )
hashval = ((hashval << 1) + str[locstr++]) % hash_size;
hashval = ((hashval << 1) + (unsigned char) str[locstr++]) % hash_size;
return ( hashval );
}

61
usr.bin/lex/tblcmp.c
View File

@ -5,47 +5,35 @@
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)tblcmp.c 5.2 (Berkeley) 6/18/90";
#endif /* not lint */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/usr.bin/lex/Attic/tblcmp.c,v 1.2 1993/05/04 07:45:15 cgd Exp $ (LBL)";
#endif
#include "flexdef.h"
/* declarations for functions that have forward references */
void mkentry PROTO((register int*, int, int, int, int));
@ -380,7 +368,7 @@ int *state, numtrans;
while ( 1 ) /* loops until a space is found */
{
if ( i + numecs > current_max_xpairs )
if ( i + numecs >= current_max_xpairs )
expand_nxt_chk();
/* loops until space for end-of-buffer and action number are found */
@ -401,7 +389,7 @@ int *state, numtrans;
else
++i;
if ( i + numecs > current_max_xpairs )
if ( i + numecs >= current_max_xpairs )
expand_nxt_chk();
}
@ -488,7 +476,7 @@ void mkdeftbl()
++tblend; /* room for transition on end-of-buffer character */
if ( tblend + numecs > current_max_xpairs )
if ( tblend + numecs >= current_max_xpairs )
expand_nxt_chk();
/* add in default end-of-buffer transition */
@ -596,7 +584,7 @@ int numchars, statenum, deflink, totaltrans;
;
}
if ( baseaddr + maxec - minec >= current_max_xpairs )
if ( baseaddr + maxec - minec + 1 >= current_max_xpairs )
expand_nxt_chk();
for ( i = minec; i <= maxec; ++i )
@ -610,7 +598,8 @@ int numchars, statenum, deflink, totaltrans;
++baseaddr )
;
if ( baseaddr + maxec - minec >= current_max_xpairs )
if ( baseaddr + maxec - minec + 1 >=
current_max_xpairs )
expand_nxt_chk();
/* reset the loop counter so we'll start all
@ -632,7 +621,7 @@ int numchars, statenum, deflink, totaltrans;
tblbase = baseaddr - minec;
tbllast = tblbase + maxec;
if ( tbllast >= current_max_xpairs )
if ( tbllast + 1 >= current_max_xpairs )
expand_nxt_chk();
base[statenum] = tblbase;

47
usr.bin/lex/yylex.c
View File

@ -5,44 +5,31 @@
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* Vern Paxson.
*
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)yylex.c 5.2 (Berkeley) 6/18/90";
#endif /* not lint */
static char rcsid[] =
"@(#) $Header: /cvsroot/src/usr.bin/lex/Attic/yylex.c,v 1.2 1993/05/04 07:45:17 cgd Exp $ (LBL)";
#endif
#include <ctype.h>
#include "flexdef.h"